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US3459494A
Expired / Lapsed
US
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Process for decomposition of oxides of nitrogen
Assignee: Standard Oil Co
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Filing: 1966-12-14
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Granted: 1969-08-05
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Expires: 1986-12-14
Abstract
No abstract record available.
Inventors
- 👤 Samuel W Harris
- 👤 Edwin F Morello
- 👤 Gavin H Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:07
CPC Classifications
C; C01; C01B; C01B21/00; C01B21/02; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/9404; B01D53/9409; B01D53/9413; B01D2255/00; B01D2255/10; B01D2255/102; B01D2255/1021; B01D2255/20; B01D2255/204; B01D2255/2042; B01D2255/2045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR PROVIDING SUBSTANTIALLY COMPLETE DECOMPOSITION OF NITROGEN OXIDE INTO NITROGEN AND OXYGEN, WHICH METHOD COMPRISES CONTACTING NITROGEN OXIDE WITH A HIGH MELTING, CATALYST SELECTED FROM AT LEAST ONE MEMBER OF THE GROUP, CONSISTING OF ALKALI METAL OXIDE, ALKALI METAL SILICATES, ALKALINE EARTH METAL OXIDES, ALKALINE EARTH METAL SILICATES, AND MIXTURES THEREOF AT A TEMPERATURE ABOVE ABOUT 700*C. FOR A TIME SUFFICIENT TO CONVERT THE NITROGEN OXIDE TO NITROGEN AND OXYGEN.
Claim 2
Dependent Claim
72 words
A PROCESS FOR PROVIDING SUBSTANTIALLY COMPLETE DECOMPOSITION OF NITROGEN OXIDE INTO NITROGEN AND OXYGEN, WHICH METHOD COMPRISES CONTACTING NITROGEN OXIDE WITH A HIGH MELTING, CATALYST SELECTED FROM AT LEAST ONE MEMBER OF THE GROUP, CONSISTING OF ALKALI METAL OXIDE, ALKALI METAL SILICATES, ALKALINE EARTH METAL OXIDES, ALKALINE EARTH METAL SILICATES, AND MIXTURES THEREOF AT A TEMPERATURE ABOVE ABOUT 700*C. FOR A TIME SUFFICIENT TO CONVERT THE NITROGEN OXIDE TO NITROGEN AND OXYGEN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |